Sense 1trade -- (the commercial exchange (buying and selling on domestic or international markets) of goods and services; "Venice was an important center of trade with the East"; "they are accused of conspiring to constrain trade") => commerce, commercialism, mercantilism -- (transactions (sales and purchases) having the objective of supplying commodities (goods and services))

Sense 2trade, craft -- (the skilled practice of a practical occupation; "he learned his trade as an apprentice") => occupation, business, job, line of work, line -- (the principal activity in your life that you do to earn money; "he's not in my line of business")

Sense 3trade, patronage -- (the business given to a commercial establishment by its customers; "even before noon there was a considerable patronage") => business -- (the volume of commercial activity; "business is good today"; "show me where the business was today")

Sense 4deal, trade, business deal -- (a particular instance of buying or selling; "it was a package deal"; "I had no further trade with him"; "he's a master of the business deal") => transaction, dealing, dealings -- (the act of transacting within or between groups (as carrying on commercial activities); "no transactions are possible without him"; "he has always been honest is his dealings with me")

Sense 5craft, trade -- (people who perform a particular kind of skilled work; "he represented the craft of brewers"; "as they say in the trade") => class, stratum, social class, socio-economic class -- (people having the same social, economic, or educational status; "the working class"; "an emerging professional class")

Sense 6trade wind, trade -- (steady winds blowing from east to west above and below the equator; "they rode the trade winds going west") => prevailing wind -- (the predominant wind direction; "the prevailing wind is from the southwest")

Sense 7barter, swap, swop, trade -- (an equal exchange; "we had no money so we had to live by barter") => exchange, interchange -- (reciprocal transfer of equivalent sums of money (especially the currencies of different countries); "he earns his living from the interchange of currency")

Sense 2trade, trade in -- (turn in as payment or part payment for a purchase; "trade in an old car for a new one") => exchange, change, interchange -- (give to, and receive from, one another; "Would you change places with me?"; "We have been exchanging letters for a year")

Sense 3trade -- (be traded at a certain price or under certain conditions; "The stock traded around $20 a share") => sell -- (be sold at a certain price or in a certain way; "These books sell like hot cakes")